Thermoelastic dissipation in inhomogeneous media: loss measurements and displacement noise in coated test masses for interferometric gravitational wave detectors
The displacement noise in the test-mass mirrors of interferometric gravitational wave detectors is proportional to their elastic dissipation at the observation frequencies. In this paper, we analyze one fundamental source of dissipation in thin coatings, thermoelastic damping associated with the dis...
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| Veröffentlicht in: | Physical review. D, Particles and fields Particles and fields, 2004-10, Vol.70 (8), Article 082003 |
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| container_title | Physical review. D, Particles and fields |
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| creator | Fejer, M. M. Rowan, S. Cagnoli, G. Crooks, D. R. M. Gretarsson, A. Harry, G. M. Hough, J. Penn, S. D. Sneddon, P. H. Vyatchanin, S. P. |
| description | The displacement noise in the test-mass mirrors of interferometric gravitational wave detectors is proportional to their elastic dissipation at the observation frequencies. In this paper, we analyze one fundamental source of dissipation in thin coatings, thermoelastic damping associated with the dissimilar thermal and elastic properties of the film and the substrate. We obtain expressions for the thermoelastic dissipation factor necessary to interpret resonant loss measurements, and for the spectral density of displacement noise imposed on a Gaussian beam reflected from the face of a coated mass. The predicted size of these effects is large enough to affect the interpretation of loss measurements, and to influence design choices in advanced gravitational wave detectors. |
| doi_str_mv | 10.1103/PhysRevD.70.082003 |
| format | Article |
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The predicted size of these effects is large enough to affect the interpretation of loss measurements, and to influence design choices in advanced gravitational wave detectors.</description><subject>CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS</subject><subject>COATINGS</subject><subject>DAMPING</subject><subject>DIELECTRIC MATERIALS</subject><subject>DISSIPATION FACTOR</subject><subject>GRAVITATIONAL WAVE DETECTORS</subject><subject>INTERFEROMETRY</subject><subject>MASS</subject><subject>MIRRORS</subject><subject>NOISE</subject><subject>PHYSICS OF ELEMENTARY PARTICLES AND FIELDS</subject><subject>SPECTRAL DENSITY</subject><subject>SUBSTRATES</subject><subject>THERMOELASTICITY</subject><issn>1550-7998</issn><issn>0556-2821</issn><issn>1550-2368</issn><issn>1089-4918</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2004</creationdate><recordtype>article</recordtype><recordid>eNo1UdtKAzEQXUTBWv0BnwI-t2aTTZP6JvUKgiL1eZkms21kd1MyaaWf45-621YYmGHmzDnDnCy7zvk4z7m8_Vjt6BO3D2PNx9wIzuVJNsiV4iMhJ-b0WOvp1JxnF0TfHUBMtB5kv_MVxiZgDZS8Zc4T-TUkH1rm-1iFJiyxxbAh1qDzcMfqQH0NtInYYJuIQev6zXUNdt9hbfCEPYENkNCxhJRYA0RIrAqxmySMFcbQYIqd7DLC1qe9LNTsB7bIHCa0KUS6zM4qqAmvjnmYfT09zmcvo7f359fZ_dvISl2kkXG5EgsUyCeKi8m0UNWiKhQoZYUDzisopJELswAnBCA3BqbSaIfCal1pkMPs5sAbuk-UZH2nv7KhbbszSsE1V4UoOpQ4oGzs3hCxKtfRNxB3Zc7L3ory34pS8_JghfwDnE2EFA</recordid><startdate>20041001</startdate><enddate>20041001</enddate><creator>Fejer, M. 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P.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Thermoelastic dissipation in inhomogeneous media: loss measurements and displacement noise in coated test masses for interferometric gravitational wave detectors</atitle><jtitle>Physical review. D, Particles and fields</jtitle><date>2004-10-01</date><risdate>2004</risdate><volume>70</volume><issue>8</issue><artnum>082003</artnum><issn>1550-7998</issn><issn>0556-2821</issn><eissn>1550-2368</eissn><eissn>1089-4918</eissn><abstract>The displacement noise in the test-mass mirrors of interferometric gravitational wave detectors is proportional to their elastic dissipation at the observation frequencies. In this paper, we analyze one fundamental source of dissipation in thin coatings, thermoelastic damping associated with the dissimilar thermal and elastic properties of the film and the substrate. 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| source | American Physical Society Journals |
| subjects | CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS COATINGS DAMPING DIELECTRIC MATERIALS DISSIPATION FACTOR GRAVITATIONAL WAVE DETECTORS INTERFEROMETRY MASS MIRRORS NOISE PHYSICS OF ELEMENTARY PARTICLES AND FIELDS SPECTRAL DENSITY SUBSTRATES THERMOELASTICITY |
| title | Thermoelastic dissipation in inhomogeneous media: loss measurements and displacement noise in coated test masses for interferometric gravitational wave detectors |
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